21845265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3863}}^1$

素因数の和:3913

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 17103855

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 3863, 5655, 11589, 19315, 50219, 57945, 112027, 150657, 251095, 336081, 560135, 753285, 1456351, 1680405, 4369053, 7281755, 21845265]

約数ペア:

[(1, 21845265), (3, 7281755), (5, 4369053), (13, 1680405), (15, 1456351), (29, 753285), (39, 560135), (65, 336081), (87, 251095), (145, 150657), (195, 112027), (377, 57945), (435, 50219), (1131, 19315), (1885, 11589), (3863, 5655)]